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20213202044 = 227721900073
BaseRepresentation
bin10010110100110011…
…001111110001111100
31221011200201001110202
4102310303033301330
5312344034431134
613141423023032
71313621245130
oct226463176174
957150631422
1020213202044
118632909962
123b0143aa78
131ba19050a9
14d9a7433c0
157d4831d7e
hex4b4ccfc7c

20213202044 has 12 divisors (see below), whose sum is σ = 40426404144. Its totient is φ = 8662800864.

The previous prime is 20213201999. The next prime is 20213202059. The reversal of 20213202044 is 44020231202.

20213202044 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360950009 + ... + 360950064.

It is an arithmetic number, because the mean of its divisors is an integer number (3368867012).

Almost surely, 220213202044 is an apocalyptic number.

It is an amenable number.

20213202044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20213202044 is a wasteful number, since it uses less digits than its factorization.

20213202044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721900084 (or 721900082 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20213202044 its reverse (44020231202), we get a palindrome (64233433246).

The spelling of 20213202044 in words is "twenty billion, two hundred thirteen million, two hundred two thousand, forty-four".

Divisors: 1 2 4 7 14 28 721900073 1443800146 2887600292 5053300511 10106601022 20213202044